Jason earns 30 cents for every carrot he sells. He earns an extra $3 for every 30 carrots he sells. How many carrots must he sell in order to earn $550?

Answer 1

n carrots

550 = .3 n + 3(n/30)
550 = .4n
n = 1375
but does he really get that last 3?
he must sell at least an exact multiple of 30 to get that last bonus
1375/30 = 45.83333 :(
so sell 46*30 = 1380
1380 * .30 = 414
+ 46*3 = 414 + 138 = 552

Answer 2

What is .4 n